Translation (to the best of my ability):
Robot guy: "I am perfect. I will carry out my mission perfectly."
Little girl crying out before being wiped out: "Papa!"
Parent sitting in the fiery aftermath: "You're a monster! You're a freak with no feelings"
Robot guy after leaving the scene: "I am perfect. I have carried out my mission perfectly."
"But."
"...what is 'feelings'?"
It's a Chinese animation called "Huo Xing 3000A" (the last bit that gets written into a search bar at the end). I can only find results for it if I search for it in Chinese.
https://www.google.com/search?q=霍星+3000A